how many miles does your street bike have on it???

also, what type of bike do you have?one person told me that if taken care of VERY well, a"crotch rocket", such as a Yamaha R6, Suzuki GSX-R, Ninja, CBR, etc, will last 100,000 miles.another person told me that they fall apart after 25,000 miles.which of these is more accurate?i've been looking at buying a pre-owned 600cc bike with 10K - 15K miles on it, and i don't want it to"fall apart"in a year or two.I always select the best answer, Thanks.